Gun-carriage.



GUN OAEEIME.

APPLICATION TILED JUNE 30, 19

Patented we we l 5.. JA- uiLera Q4311 A .HEDBICH LljHMANN, 0F DUSSELDORF. GEBJdAlIY.

GUN GARRIAGE.

Patented Dec. 29, 1914:

Specification of Letters Ea'teut.

epplication filed. June 30, 1914. Serial No. 848,2?8.

To all whom it may concern Be it known that we, KARL VLLER, a subject of the German Emperor, residing at 12 Schui'nhoitstrosse, Dusseldorf, Germany, and FRIEDRICH L't' nsmiix, a subject of the German Emperor, residing at 5 Sommerstressc, Dusseldorf, Germany, have invent ed eel-lei new and useful improvements in Gun-Carriages; and we do hereby declare the following to be full, clear, and exact description of the invention, such will. enable others skilled in the to which it zip-pert to make and use the same.

The Lw ition relates to means for securing the of e. gun carriage to the wh el axle so as to set the springs out of action. Shock absorbers are usually inserted between the upper and lower frames of these cerraiges to diminish the shock and to take the load 0d the springs, but before firing, the upper and lower-parts are rigidly connected, so that the springs are not subjected to the 'voilent impulses due to firing.

It has been previously proposed to rigidly secure the upper and lower fmmestogethei' by means of the shock absorbers. which for this purpose are constructed as hydraulic brakes, and in which the rigid connection. is obtained by rotating the piston.

According o the present inve. tioii, this retu-tioii is effected ti some members w ich bring the carriage brake into opeu'ctioiu and the ai'run 'emeut is such that the rotation all the pm 30.. whim us the securing device. only take place after the brake lc V61 has been mos-2.1 through a disleiice,

An exuniolc a. construction according to the invmitioii is sho n in the accompany di'ei Figure 1* side elevation. Fig. of the brake operat- 3 1S vertical section m il ngs, u is the m me? arm-lugs on which the gun is suww 111 Known manner -e b means of? tier of the hydgeuli o sh ck absorber and is secured by means of th- 211m 6 to the c wheel a e 7), while the piston rod 1 is pivoted in the frame a. The oiston consists of two disks (Fig. 3) which are relatively rosalable, of which the disk is is guided, so that it cannot rotate, by means of the groove of the cylinder, while the other disk 5 is fastened to the piston rod and. rotates with it. The rotation is effected by means of the lever is with which the rod Z engages. This is connected with the members which operate the carriage broke.

The carriage brake w islnoverl by the hand lever m pivoted on the carriage frame and with the rod 91, (Figs. 1 and 2). The latter is connected through the spring member 0 with the brake lever 7). The arm to the rod -n and is bivoted to the frame of 'th carriage about t .c bolt 1". G11 the arm g there is a pin. 8 which engages in a slot 2% of the rod Z.

When the'gun is to be fired, the carriage brake is first applied so that the wheels cannotmove during firing. The hydraulic buffer only acts as a securing device when the pin 8 arrives at the other end of the slot t, so that by the relative rotation of the two piston disks, the openings u therein are moved out of alinement, preventing passage of fluid therebetween and locking the piston. The hydraulic butler can also be set so as to act as :1 securing device independently of the members which serve for actuating the brake device.

We claim as our invention:

1. e gun carriage comprising a frame, carrying wheels and an axle therefor,'

' for iigidly securing said frame to said axle,

and means for rendering the lust-mentioned means effective upon a, predetermined movement oi said brake-mechanism.

carrying wheels and an axle therefor, springs connecting said frame and said axle, a brake-mechanism for said wheels, means for rigidly securing said frame to said axle,

and a sliding connection between said securing means and said brake-mechanism for gun carriage comprising a frame rendering said secu ring means efiective upon a predetermined movement of said brakemechanism.

4. A gun carriage comprising a frame, carrying wheels and an axle therefor, springs connecting d. frame and said axle, a brake mecbanism. for said wheels, a shockabsorber between said frame and said axle, connection, between said shock-absorber and said brake-meclianism for rendering said shock-absorber ine tl ective as such upon a predetermined movement of said brakemechanism.

5. A gun carriage comprising a frame, carrying wheels and an axle therefor, springs connecting said frame and said axle, a brake-mechanism for said wheels, a hydraulic buflfer between said frame and said axle, a connection between said buffer and said brake mechanism for rendering said buffer ineffective as such upon a predetermined movement of said brake-mechanism.

6. A gu'n carriage comprising a frame, carrying wheels and an axle therefor, springs connecting said frame and said axle, a brake-mechanism for said wheels, a shock absorber between said frame and said axle, said shock-absorber having rotatable means for preventing the normal movement of its parts, a connection between said shock-absorber and said brake-mechanism for rendering said shock-absorber rigid upon the actuation of said brake-mechanism.

7. A gun carriage comprising a frame, carrying wheels and an axle therefor, springs connecting said frame and said axle,

a brakeanechanism for said Wheels, a shock-' absorber between said frame and said axle, said shock-absorber comprising two piston parts having cooperating ports, a cylinder 40 wherein said piston parts are normally movable, a rotatable rod for moving one of said piston parts relatively to the other to place said ports out of alinement, and means connecting said rod to the brake-mechanism whereby the rod will be turned upon the actuation of said brake-mechanism.

In testimony whereof, we have signed this specification in the presence of two subscribing witnesses.

KARL VOLLEB: FRIEDRICH LUHMANN.

. WVitnesses to signature of Karl Vtiller:

AUGUST FUeenn, ADA MARIA BERGER. Witnesses to signature of Friedrich Liihmann:

HELEN NUFER, FRANCES NUFER. 

